INVT GD270-090-4 - Page 244

Goodrive270 series VFD for fan and pump Function parameter list
-234-
Function
code
Name Description Default
Modify
motor action for
motor reducing
1: Accelerate to the motor running frequency
P94.28
Variable-frequency
motor ACC time for
motor reducing
0.0
±300.0s 10.0s ƻ
P94.29
Multi
-
motor pressure
loss compensation
0: No
1: Yes
0 ƻ
P94.30
Pressure reference
boost value for
one
auxiliary motor
0.0
±100.0% (relative to PID1 reference value)
5.0% ƻ
P94.31
Pressure reference
boost value for two
auxiliary motors
0.0
±100.0% (relative to PID1 reference value)
10.0% ƻ
P94.32
Pressure reference
boost value for three
auxiliary motors
0.0
±100.0% (relative to PID1 reference value)
15.0% ƻ
P94.33
Reserved
P94.34 Motor polling cycle
0.0
±6000.0h
Automatic polling is targeted at idle
variable
-
frequency motors. The value 0 indicates
no polling.
0.0h ƻ
P94.35
Running frequency
threshold for polling
P00.05
±P00.03
When the running frequency is greater than the
value of this function code, variable
-frequency
motor polling is not performed. Otherwise, great
water pressure change impacts water supply.
45.00Hz ƻ
P94.36
Contactor closing
delay
0.2
±100.0s
The delay starts after the contactor closing
command is given. The VFD startup command is
given after the delay since actual contactor
closing also takes some time.
0.5s ƻ
P94.37
Contactor opening
delay
0.2
±100.0s
Some time is taken from givin
g the contactor
opening command to actual contactor opening.
After the
time of delay, the VFD controls the
motor to switch to power frequency.
0.5s ƻ
P94.38
Manual soft startup
switching frequency
0.00
±P00.03
Used to check whether a motor can run properly.
50.00Hz ƻ